Tentering machine



Febfl 1,1930. J. J. HoEY TENTERING MACHINE 2 Sheyets-Sheet F11edJan- 5o, 1959 JNVENTOR. Y l

BY @MM mzw ATTORNEYS.

\ J. J. HOEY TENTERING MACHINE Feb. 11, 1930.

Filed Jan. 30, 1929 2 Sheets-Sheet 2 INVENTOR.

ATTORNEYS.

` i yPatented Feb. 11, 1930 Unirse STATES PATENT @FFICE JOHN? JOSEPH HOEYLOETROVIDENCE, RHODE ISLAND` ENTER-ine MACHINE' Appncatoniea January so, 192e; serial No. 336,266;

This `invention `relatesto an I improved con struction of tenterlng: nlachlne; and has for* itsnobjectto* `provide in-such a machinefmeans tween` gripping points in one chain moves* le ahead or'behindcorresponding-points' in the opposite chain tno-maintain a constant distancebetween these pointsto prevent tearing ofthegoods beingtreated.

A further object of the. invention is the pro than the other and to provide cooperating means fen moving the chain rails laterally y teward and'f'romeaeh other1 and connecting `a@ theseltwofdriving `n1`eanste run intime with eaeho-ther so -as `tomaintain unifbrm ten,- siom on the Inotion.-

With these and other objfectsinview, the invention consists f off certain novel features of construletirm,"` as will" be more fully die-l scribed,` and particularly pointed` out inthe appended claimsf Y Inthe accompanyingydrawings Eig: isi alplan lviewshowinga fragmental portion of my improved tenteringmachine; Fig; firsfseetion on line2"2 of Fig..` l

thruone standard showing' a portion of the` operatinginechanism. l 35: 171g; 311s aseetion` onlineS-S'of Fig. 2 shomngfthe usual andscrewffbradjust ing'the working width of the chain'rail to* fscrew nut block between the-spaced lugs f 45" odiwhfieh is monntedthe 'carnserew` which when escllated imparts a' reeiproca-tin`gmove-` mentvodfthe rails toward" and fren-1"y each other thru aY sliding movement of 7 the saddle` `plate and independently 'of the actiono the adjust- I 59 ing screws.`

vision ofnreans `fer `oseillating `the chains that iste drive the-cliains`= alternately one fasterL goeds during this" oscillating Fig. 6 is adeta-il illustrating the driving means for reciprocating the cam screws.

Fig. 7 isan end view illustrating the `gen'- eralconstruction of the tenter chains carryngclipsnbetween which the edges of the web are held;

ligs".` 8, 9'v and 'l0-illustrate the advancing and retarding movements oit one point ofone chainrelative to `that ofthe Opposite chain whereby an oscillating,` racking or leXing movementis applied to opposite edgesofthe web to break up the starch between its fibres and so-tenthe same.` y Fig. ll is a diagrammatic view showing onei'orm of driveV whereby the two chains may be alternately driven one faster than the other by separate driving:y members andthe' chains alternately moved toward Vand from each other in time with the relative voscillating or shifting movement" of thevchains;

Itis found in the practical useo'f Jcentering machines when employed to treat some kinds of starched fabrics of advantage to provide means whereby the-surface of; the fabric may be oscillated orI 'flexed edgeways to y break `up the starch and softenthe goods", and to' obtain this elleet on `the goods "while undergoing `the usual tentering operation, I have provided means whereby the chains may be alternately driven oneasterthan the other, and in order to compensate for theu distance that one point v of: chain grip on the web moves ahead ofthe opposite point of the grip on the web so that av substantially uniform distance between these points may be maintained to prevent tearing or undue stretching of thegoods, I y

have provided oscillating means cooperating with this cham driving mechanism for vary-` lng the distance between thejchains to coin- `pensatefor the varying distance of opposite points on the chains. In other words, the lateral distance between the chains is' reduced in proportion to the increase vof distance between opposite gripping points inthe chain as one is moved'ahead of "the other;` and the" follow- 9 ing isl a detailed descriptionof the present embodiment of my invention vand showing one means by whiclithese advantageous results `may be" accomplished.

Withreference to the drawings, 10 designates the opposite side rails of a tentering machine, which are supported in the usual standards 11 and on these rails are mounted the usual tenter chains 12 having the usual clips 13 (not shown in Fig. 1), which run in grooves 14 and grip the opposite edges of the web 15 between them. i

Ordinarily, these rails are arranged to be manually adjusted laterally thru the hand wheel 16, screws 17, nuts 40 and gears 18 to be moved toward and from each other so as to receive and operate upon goods of different widths. These different chains may be driven from motors 19 thru gears 23, short shafts 20, gears 21 and sprocket wheels 22 at speeds independently of each other and the speeds of these chain driving motors may be regulated by any suitable means, that herein shown being by providing a pair of rheostats 24 connected to the motors thru wires 41 and 42, which rheostats are operated from a motor 25 thru gears 26, beveled gears 27, crank 28 and connector 29 so that as this crank 28 rotates it will move the rheostat arms progressively to increase the resistance of one of these motors and rogressively cut out the resistance to the ot er motor so that they may alternately run faster and slower rela-v tive to each other. p v

In order to apply a transverse movement to the rails 10 to move them toward and from each other in time with the relatively fast and slow movements of the two chains in the course of their travel thru the machine, I have slidably mounted a cam screw 30 between the bearing arms 43 in the saddle carrying block 44011` each end of the splined cross shafts 31 to engage the pin 32 in the slidable saddle lates 33 which plates are mounted to` slide aterally on the block 44 and have a trunnion extending into the rail l() and on the ends of these shafts 31 I have mounted depending arms 34 which are all connected togetherl by a rod 35 and are caused to oscillate back and forth by means of arevolving crank 36 thru the connecting rod 37 whereby as this crank rotates with its shaft these arms 34 are caused to swing back and forth and soV rotate the cam screw 32 to act upon their saddle plates 33 to move the rails v10 back and forth toward and from each other to compensate for the distance between given points inthe chains as the different chains move ahead or fall behind corresponding points in the opposite chains to prevent the tearing of the goods be-` in treated.

y the use of my improved attachment to a tentering machine, I am enabled to exert a very effective racking, oscillating or shifting movement to the goods to breakup the starch between its fibres while undergoing the usualV tentering operation.

The foregoing description is directed solely towards the construction illustrated, but I desire it to be understood that I reserve the privilege of resorting to all the mechanical changes to which the device is susceptible, the invention being defined and limited only by the terms of the appended claims.

I claim:

1. In a tentering machine, chain supports, spaced chains on said supports for gripping opposite edges of the web to be treated, means for alternately advancing one chain faster than the other during their travel, and other means for alternately moving corresponding points on said supports toward and from each other in a plane perpendicular to the direction of travel of the chains to compensate for 'the distance that one grip point of one chain moves ahead of the corresponding grip point on the opposite chain so that the distance between said points may always .be substantially the same to prevent tearing the goods. p

2. In a tentering machine, spaced chain rails, a traveling chain on each rail for gripping opposite edges of the web to be treated, means for alternately advancing and retarding said chains relative to each other during their travel along said rails, and other means for alternately moving corresponding points on said rails relatively toward and from each other yin a plane perpendicular to the direction of travel of the chains in time with the relative advancement and retarding actions of said chains.

3. In a tentering machine, spaced chain rails, a chain on each rail having clips to grip opposite edges ofthe web to be tested, means for driving the chains alternately one faster than the other on said rails to cause edgewise vibrations of the web, and means cooperating with the alternating or shifting movement of the chains to compensate for the distance that one point of the chain grip on the web moves ahead of the opposite cooperating grip point on the web so that the distance between said points may'always be substantially the same to maintain a substantially uniform tension on the goods. y

4. In a tentering machine spaced chain rails, a chain on each rail arranged to grip opposite edges on the web being treated, means for driving the chain alternately one faster than the other on said rails, and means cooperating with said chain driving mechanism for narrowing and widening the space between said chains as the distance between given points in one chain moves ahead or behind corresponding points in the opposite chain.

5. In a tentering machine spaced chain rails, a chain on each rail arranged to grip opposite edges on the web being treated, means for drivinor the chain alternately one faster than the other on said rails, means for adjusting the working width of the chain rails, and means cooperating with said chain driving mechanism and independent of said to grip opposite edges on the Web being treated, means for advancing the chains alternately one faster than the other on said rails,

means including screws and nuts for adjusting the Working Width of the chain rails, rail carrying slide plates movable independently of said adjustable means, and cammembers cooperating with the chain drive mechanism for automatically and alternately moving the opposite chain rails toward and from each other.

In testimony whereof I aiiix my signature.

JOI-IN .JOSEPH I-IOEY. 

